Package org.apache.polaris.persistence.nosql.nodeids.api

Interface NodeManagementConfig

All Known Subinterfaces:

NodeManagementConfig.BuildableNodeManagementConfig

@ConfigMapping(prefix="polaris.node")
public interface NodeManagementConfig

Node management configuration.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	NodeManagementConfig.BuildableNodeManagementConfig

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_LEASE_DURATION
static final String	DEFAULT_NUM_NODES
static final String	DEFAULT_RENEWAL_PERIOD

Method Summary

Modifier and Type	Method	Description
org.apache.polaris.ids.api.IdGeneratorSpec	idGeneratorSpec()	Configuration needed to build an ID generator.
Duration	leaseDuration()	Duration of a node-lease.
int	numNodes()	Maximum number of concurrently active Polaris nodes.
Duration	renewalPeriod()	Time window before the end of a node lease when the lease will be renewed.

Field Details

DEFAULT_LEASE_DURATION

static final String DEFAULT_LEASE_DURATION

See Also:

• Constant Field Values

DEFAULT_RENEWAL_PERIOD

static final String DEFAULT_RENEWAL_PERIOD

See Also:

• Constant Field Values

DEFAULT_NUM_NODES

static final String DEFAULT_NUM_NODES

See Also:

• Constant Field Values

Method Details

leaseDuration

@WithDefault("PT1H")
Duration leaseDuration()

Duration of a node-lease.

renewalPeriod

@WithDefault("PT15M")
Duration renewalPeriod()

Time window before the end of a node lease when the lease will be renewed.

numNodes

@WithDefault("1024")
int numNodes()

Maximum number of concurrently active Polaris nodes. Do not change this value or the ID generator spec, it is a rather internal property. See ID generator spec below.

idGeneratorSpec

org.apache.polaris.ids.api.IdGeneratorSpec idGeneratorSpec()

Configuration needed to build an ID generator. This configuration cannot be changed after one Polaris node has been successfully started. This specification will be ignored if a persisted one exists, but a warning shall be logged if both are different.